Jumat, 02 April 2010

Sifat Golongan Unsur Alkali Tanah

Posted By: Syiham Al Ahmadi - April 02, 2010

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UNSUR

4Be
12Mg
20Ca
38Sr
56Ba
1. Konfigurasi elektron
[X] ns2
2. Massa atom

3. Jari-jari atom (n.m)

4. Energi ionisasi

(M ® M+) kJ/mol

(M ® M2+) kJ/mol

5. Potensial oksidasi (volt)
6. Keelektronegatifan
7. Suhu lebur (oC)

Antara 650o - 1227o

8. Bilangan oksidasi
+2
+2
+2
+2
+2

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